Arqade
Q&A for passionate videogamers on all platforms
English Language & Usage
Q&A for linguists, etymologists, and serious English language enthusiasts
Music: Practice & Theory
Q&A for musicians, students, and enthusiasts
Super User
Q&A for computer enthusiasts and power users
Role-playing Games
Q&A for gamemasters and players of tabletop, paper-and-pencil role-playing games
Puzzling
Q&A for those who create, solve, and study puzzles
Worldbuilding
Q&A for writers/artists using science, geography and culture to construct imaginary worlds and settings
Game Development
Q&A for professional and independent game developers
Electrical Engineering
Q&A for electronics and electrical engineering professionals, students, and enthusiasts
Mathematics
Q&A for people studying math at any level and professionals in related fields
Stack Overflow
Q&A for professional and enthusiast programmers
Meta Stack Exchange
Q&A for meta-discussion of the Stack Exchange family of Q&A websites
Code Review
Q&A for peer programmer code reviews
Science Fiction & Fantasy
Q&A for science fiction and fantasy enthusiasts
Information Security
Q&A for information security professionals
Physics
Q&A for active researchers, academics and students of physics
Board & Card Games
Q&A for people who like playing board games, designing board games or modifying the rules of existing board games
Software Engineering
Q&A for professionals, academics, and students working within the systems development life cycle
Ask Ubuntu
Q&A for Ubuntu users and developers
Law
Q&A for legal professionals, students, and others with experience or interest in law
Vi and Vim
Q&A for people using the vi and Vim families of text editors